From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Test report on an experimental dynamo's performance after a mechanical overhaul.
| Identifier | ExFiles\Box 51\1\ Scan119 | |
| Date | 6th November 1918 | |
| RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No Customer's No: S. 19 at 1490 rpm, keeping wholly outside the specified minimum output, soon after cutting in. The amperes fell to about 6.0 at 3500 rpm. The experimental dynamo, after being mechanically overhauled in the experimental shops, under the same test, rose to a final temperature of 62° C. The open- circuit voltage at 640 rpm was then found to be 12.25, the speed for 13.6 volts being 675 rpm. When connected to a battery the output rose to slightly over 11.0 amperes at 1530 rpm. falling to rather less than 6.0 amperes Signed (Cont'd) This Sheet must be filed on completion of the work. | ||